Hemera 4020 blower fan duct

thingiverse

I crafted this custom mount as existing mounts for 4020 blower fans all had problems aligning airflow beneath the nozzle while preventing it from scraping on the print. By tilting the fan away from the nozzle, I created a straighter path through the duct to the part and made space for airflow around the Hemera heatsink. The duct itself isn't complete as it's currently very basic and probably not the optimal design. I will continue updating and finishing CFD and print testing in the future. In my installation, the red mess around the base of the blower is because I'm having trouble with bed adhesion at the moment, so the duct was slightly warped meaning I had to seal it in. Assembly: The mount attaches to the Hemera through four points using 6mm M3 countersunk screws, and the fan attaches with a minimum of two points using M3 16mm non-countersunk screws.